Valve



June 21 1927. 1,633,488

P. J. MOGINN VALVE Filed Sept. 20. 1926 2mm 111M121];

INVENTOR Patented June 21, 1927.

PATRICK J. MOGINN, OF NEW YORK, N. Y.

VALVE.

Application filed September 20, 1926. Serial No. 136,647.

This invention relates to improvements in valves.

The primary object of the invention resides in a valve which is seated when in a 6 closed position and when in an open position thereby preventing leakage between the co-acting parts at all times.

Another object of the invention is to provide a valve which may be turned to a complete on position from a fully closed position in less than a full revolution of the valve stem, thus rendering the valve quick in its actions. v

A further object of the invention is to provide a quick acting valve structure for faucets, hydrants and the like which is simple in construction, inexpensive of manufacture and positive in its action.

With these and other objects in view, the invention resides in certain novel construction and combination and arrangement of parts, the essential features of which are hereinafter fully described, are particularly pointed out in the appended claim, and are illustrated in the accompanying drawing, in which:

Figure 1 is a vertical longitudinal sectional view through my improved valve.

Figure 2 is a fragmentary horizontal sec- 30 tional view on the line 22 of Figure 1.

Figure 3 is a view similar to Figure 2 but taken on the line 3-3 of Figure 1.

Figure 4 is a detail vertical sectional view of a slightly modified form of my invention.

Figure 5'is an enlarged detail sectional view of the lower end of the valve stem.

Referring more particularly to the drawing, the reference numeral designates my improved valve in its entirety and which may be constructed in the form of a pipe line valve, faucet, hydrant or the like, and which includes a casing 11 having an inlet 12 and an outlet 13, with a partition 14 within the casing intermediate the inlet and outlet. The partition 14 is provided with an opening 15 through which one end of a valve stem 16 extends, the walls of said opening serving as a bearing for the lower end of the valve stem. The valve stem 16 extends upward through a stufiing box 17 provided on the top of the casing 11, and has its upper extreme end provided with a manipulating handle 18 adapted to be grasped and turned by the hand of an operator for imparting a like turning movement to the stem. A boss 20 rises from the upper face of the partition 14 and is provided with a threaded bore 21 for co-acting engagement with left-hand threads 22 on the valve stem 16. The threads are of a low pitch so as not to cause any great longitudinal movement of the valve stem during the turning of the same from an off position to an on position.

Thevlower end of the valve stem has a flat valve or'head 23 which is fixedly mounted thereon and which has a crescent shaped port 24 therein for register with a similar shaped port 25 provided in the partition 14 when the valve stem is turned to an on position. When shut off, the port 24 is disposed approximately diametrically opposite the port 25- sothat it is only necessary to turn the stem one-half revolution to cause the two ports to register for establishing a full open position of the ports.

For limiting the turning movement of the valve stem to an on positon for causing perfect registering of the ports 24 and 25, I provide a shoulder or stop 26 on the interior of the Valve casing 11 for engagement by an arm 27 carried by the lower end of the valve stem 16. The arm is fixedly mounted to the valve stem by providing the same with a sleeve 28 which is internally provided with longitudinal teeth 29 for co-action with similar teeth 30 on the end of the valve stem. By providing the co-acting teeth on these parts, it is possible to set the arm to the desired position where it is held, as the parts cannot turn with respect to each other. A set screw passes through the arm and into the end of the stem for holding the parts against separation.

The valve stem 16 is provided with a squared portion 31 directly above the valve disk 23 and on which portion a washer 32 having a square opening 33 is fixedly mounted and which washer has a. slot 34 disposed in register with the port 24 in the valve disk. The washer is constructed of relatively yieldable material and is kept sealed against the underside of the partition and the upper face of the valve disk. lVhen the valve disk is in an off position, the washer is under greater compression, than when the same is in an on position, but even when in an on position, the washer is tightagainst the valve and the upper face of the valve disk, thus preventing leakage between the valve disk and the partition at all times.

For permitting assembly of the parts, I

provide the bottom of the valve casing with a screw cap 33.

In Figure 4 of the drawings, I provide a valve disk 23' with a bevelled top face 24 and which co-acts with a similar shaped seat 25' provided in the underside of the partition 14. In this form of the invention, the

washer is eliminated and the surface 24' is in frictional engagement with the seat 25 to seal the joint therebetween. Should any leakage occur between the valve disk and the seat while the valve is in an on position, the liquid passing therefrom will not tend to cause any material damage as the same cannot pass to the outlet side of the valves without going through a port inthe partition.

While I have described what I deem to be the most desirable embodiment of my invention, it is obvious that many of the details may be varied without in any way de parting from the spirit of my invention, and I therefore do not limit myself to the exact details of construction herein set forth nor to anything less than the whole of my invention limited only by the appended claim.

What is claimed as new is 1- A valve comprising a casing having an inlet and an outlet, a partition therebetwee and having a port therein, a valve stem jo nalled in said partition and extending beyond said casing, co-acting screw threads between said partition and said valvestem 1 tween said partition and said valve disk for turning movement with said stem to seal the joint between said partition and said disk at all times during the limits of the turning movements of said valve stem, said washer having a slot therein in alignment with the port in said valve disk, and an arm carried by the lower end of said valve stem for co-action with a stop member provided on said casing for limiting the turning movement of said valve stem to an on position to cause said ports to register, and a removable screw cap in the bottom of said casing for facilitating the assembly of the valve disk and washer on said valve stem.

In testimony whereof I'have afiixed my PATRICK J. MoGINN.

' signature. 

